/Engine/Plugins/Media/PixelStreaming/Source/PixelStreaming/Public/PixelStreamingDelegates.h
The quality controlling peer has changed
typedef TMulticastDelegate_TwoParams< void, [FString](API\Runtime\Core\Containers\FString), [FPixelStreamingPlayerId](API\Plugins\PixelStreaming\FPixelStreamingPlayerId) > FQualityControllerChanged